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GERN in the 13F filings

Geron Corp · CUSIP 374163103

Sector · Pharmaceuticals and biotechnologyTheme · Healthcare: biopharma and medtech· L3VLUP-definedTheme · Pharmaceutical preparations
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q2 2023Q1 2023
Quarter end
30 Jun 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 13 Aug 2026
Managers listing it
22
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 1 listed it in both
Shares listed
65,078,464
combined, among listed positions
Reported value
$83m
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 14 buyers (opened or added shares) and 11 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -4,674,160.

Managers listing GERN in Q2 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

22 of 22 holders

ActionFiling
Citadel Advisors LLC29,038,928$37munder 0.1%Added+7,462,3592 Sep 2026 (the filing on sec.gov)
Millennium Management LLC8,112,267$10munder 0.1%Added+790,74514 Aug 2026 (the filing on sec.gov)
Fidelity (FMR LLC)5,502,807$7.0munder 0.1%Trimmed-1,094,34913 Aug 2026 (the filing on sec.gov)
Renaissance Technologies LLC4,579,000$5.9munder 0.1%Added+2,779,47913 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP4,308,013$5.5munder 0.1%Added+2,418,54514 Aug 2026 (the filing on sec.gov)
Point72 Asset Management LP4,045,201$5.2munder 0.1%Trimmed-16,411,93314 Aug 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP2,526,145$3.2munder 0.1%Added+2,514,15814 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP1,547,239$2.0munder 0.1%Added+297,22214 Aug 2026 (the filing on sec.gov)
Moore Capital Management LP1,191,941$1.5munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Invesco Ltd1,175,208$1.5munder 0.1%Trimmed-129,25014 Aug 2026 (the filing on sec.gov)
Man Group PLC696,669$892kunder 0.1%Added+299,76114 Aug 2026 (the filing on sec.gov)
AllianceBernstein LP571,821$852kunder 0.1%Added+16,12014 Aug 2026 (the filing on sec.gov)
Squarepoint Ops LLC534,461$684kunder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc459,584$589kunder 0.1%Added+69,56814 Aug 2026 (the filing on sec.gov)
Janus Henderson Group Ltd239,357$305kunder 0.1%Trimmed-1,978,83914 Aug 2026 (the filing on sec.gov)
Verition Fund Management LLC173,689$222kunder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC135,350$173kunder 0.1%Added+111,24814 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.123,931$159kunder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
AQR Capital Management LLC55,705$71kunder 0.1%Trimmed-4,14214 Aug 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP31,173$40kunder 0.1%Trimmed-7,65014 Aug 2026 (the filing on sec.gov)
Neuberger Berman Group LLC15,575$20kunder 0.1%Trimmed-9,80627 Oct 2026 (the filing on sec.gov)
Farallon Capital Management LLC14,400$18kunder 0.1%Trimmed-28,60014 Aug 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q1 2026 to Q2 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Exited (3)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
5 in Q3 2024 to 2 in Q2 2026

Tracked managers listing it, at least.

024620142015201620172023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
GERN by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20131$3.9mn.a.n.a.
Q3 20131$8.4mn.a.n.a.
Q4 20132$9.9mn.a.n.a.
Q1 20141$6.4mn.a.n.a.
Q2 20141$11mn.a.n.a.
Q3 20141$4.4mn.a.n.a.
Q4 20142$3.7mn.a.n.a.
Q1 20152$2.8mn.a.n.a.
Q2 20151$705kn.a.n.a.
Q3 20151$455kn.a.n.a.
Q4 20151$773kn.a.n.a.
Q1 20161$466kn.a.n.a.
Q2 20161$428kn.a.n.a.
Q3 20161$327kn.a.n.a.
Q4 20161$300kn.a.n.a.
Q1 20171$328kn.a.n.a.
Q2 20171$401kn.a.n.a.
Q3 20171$315kn.a.n.a.
Q4 20171$260kn.a.n.a.
Q3 20222$3.0mn.a.n.a.
Q4 20221$3.2mn.a.n.a.
Q1 20231$7.6mn.a.n.a.
Q2 20231$31mn.a.n.a.
Q1 20242$29m20
Q2 20244$185m40
Q3 20245$220m32
Q4 20244$216m31
Q1 20253$43m03
Q2 20252$11m10
Q3 20252$8.1m01
Q4 20252$10.0m714
Q1 20261$64k157
Q2 20262$1.5m1411

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

GERN and LLY →GERN and JNJ →GERN and VRTX →Choose a stock to compare with GERN →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own GERN, latest filings →Back to the 13F Explorer →